What is an Elasticsearch cluster?
a) A single node running Elasticsearch
b) A group of nodes working together to store and search data
c) A way to store documents in a single table
d) A set of backup nodes
Answer:
b) A group of nodes working together to store and search data
Explanation:
An Elasticsearch cluster is a group of one or more nodes working together to store data and provide search capabilities, allowing for scalability and fault tolerance.